Finding the Fourth Proportional to 905,657.15, 1,249,819.81 and 497,796.71
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Solution
The fourth proportional to 905,657.15, 1,249,819.81 and 497,796.71 is: 686,966.56
Step by Step Solution
- Step 1: Write the proportion equation
905,657.15 : 1,249,819.81 = 497,796.71 : x - Step 2: Convert to fraction form
905,657.15/1,249,819.81 = 497,796.71/x - Step 3: Cross multiply
905,657.15x = 1,249,819.81 × 497,796.71 - Step 4: Simplify right side
905,657.15x = 622,156,182,017.23 - Step 5: Solve for x
x = 622,156,182,017.23/905,657.15 - Step 6: Final answer
x = 686,966.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.